The flotation process enriched copper in the slag concentrate, compared with FSF slag, in addition to the significant increase in copper grade (about 21.55 %), the As and Cd grades also increased significantly and the Ni and Pb grade increased slightly. Although the Zn, Cr and Fe grade decreased, the iron content in the concentrate was still ...
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Consequently, flotation was attempted to recycle Cu in slag containing copper sulphide components. Three key factors affecting flotation were ascertained, namely, grinding …
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Currently, direct flotation is commonly used to recover Cu from CSS, but the Cu recovery rate is usually below 90%. To gain insight into detecting the factors that affect the …
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Copper slag flotation offers a viable approach for recovering valuable copper from this industrial byproduct. By carefully considering factors such as particle size, pH, reagents, temperature, agitation, and froth collection, operators can optimize the process to achieve maximum copper recovery. Continuous research and development in flotation ...
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26slightly oxidizing the chalcocite surface and improving the flotation effect of copper 27slag. Under the optimal flotation conditions of 600 g/t sodium carbonate and 300g/t 28xanthate, the recovery efficiency of copper can reach 98.07% with a high concentration 29of 36.13%. Moreover, the flotation kinetic model of copper slag was established and
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This paper describes the evaluation of the copper slag flotation conducted at the MAMP concentrator plant, which was developed from flotation tests at the laboratory scale and taken to the industrial scale, and was …
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Flotation is the dominant beneficiation method at present, which mainly aims at utilizing the residual copper in the slag (Zhou et al., 2021; Piatak and Parsons, 2015).However, in order to float out copper sulfide encapsulated in fayalite, a large amount of energy is required to fully grind the copper slag, while other valuable elements are not utilized (Guo et al., 2018a).
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High-pressure oxidative acid leaching of copper converter slag, converter slag, and pyrrhotite tailings, nickel smelter slags, and historical copper slag yielded high leaching efficiencies in the range of 91–99% for valuable metals such as …
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The copper slag is fed into the flotation unit and the sulphide minerals (Cu 2 S, Cu 5 FeS 4) are floated with the help of collector and frother reagents to produce a concentrate. The flotation method has mainly been investigated on the two types of slags namely, reverberatory and smelter slags.
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Copper recovery from copper slags through flotation enhanced by sodium carbonate synergistic mechanical activation; Advances in recovery of valuable metals and waste heat from copper slag
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BCL slag contains both copper and iron which are of interest and subsequently copper as mentioned can be recovered using flotation and iron be recovered using magnetic separation . talks about past work on recovery of iron from copper slag using direct reduction – magnetic separation which yielded iron concentrate of 90.68% assay. The BCL ...
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Copper slag (CS) is typically generated during the smelting of copper sulphide concentrates and the refining of blister copper. Globally, nearly 80 % of copper is produced via the conventional pyrometallurgical process [1].Statistics indicate that the production of 1 ton of refined copper generates approximately 2.2 t–3.0 t of CS [2], [3], causing the annual global emission of CS to …
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Copper is a valuable global resource that is extensively used in daily life [1], [2], [3].In recent years, the consumption of copper resources has been continuously increasing and has been improving year by year [4], [5], [6].Pyrometallurgical is the major means of producing copper [7].However, for each 1 t of copper metal produced, 2–3 t of copper slag (CS) is …
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Flotation is one of the most important methods for recovering copper from copper slag, However, traditional grinding may be over grinding sometimes, resulting in smaller interface difference ...
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Holland et al. investigated the reduction behavior of copper smelting slag flotation tailings below its melting point at 700–900 °C using methane and hydrogen as reductants. The study showed complete reduction of magnetite within the first 30 min of the process and the harmful impurities such as antimony, arsenic, bismuth, lead and zinc ...
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This article explores the key factors influencing the efficiency of copper slag flotation, including particle size, pH, collectors and frothers, temperature, agitation, and froth collection system design.
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Lowest copper recoveries were obtained with alkyl hydroxamate in single collector floation performance. It has been reported that the alkyl hydroxamate is not very selective for sulphide flotation. In case of copper slag most of the copper occur in the form of copper sulphide and shows very low response with alkyl hydroxamate.
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Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two one-year campaigns ...
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Moreover, the flotation kinetic model of copper slag was established and the results show that the movement of copper slag in the flotation process conforms to the first-order kinetics. The addition of sodium carbonate increased the stability of the pulp and improved the flotation kinetics greatly, resulting in a better flotation performance.
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However, it has become apparent that copper slag flotation tailings can meet resource requirements under certain circumstances. Besides copper, zinc and cobalt can also be obtained from slag tailings. This study investigated the potential of copper slag tailings alongside global metal supply and demand dynamics. It has been emphasized that ...
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The second route was found to be suitable for the treatment of the copper slag studied. In the flotation step, a copper concentrate containing approximately 11% Cu was produced with a 77% recovery ...
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Copper slag is the main solid waste from the copper pyrometallurgical process [1].They are considered hazardous waste because they have significant concentrations of dangerous heavy metals [2].Every tonne of copper metal produced yields between 2.2 and 3 tonnes of copper slag, meaning that about 50 million tonnes of slag are produced annually worldwide [3], [4].
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Shamsi et al. [] studied the effect of copper slag particle size on the flotation effect, the highest copper recovery efficiency of 79.89%was achieved when the grinding time was 80 min and the grinding size was 48 μm [].Sibanda et al. [] controlled the size of copper slag and flotation reagents to improve copper recovery by 16% when the particle size of copper slag was 45 μm.
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Chemical analysis of smelter slag sample obtained from Flotation plant in Bor, Serbia, showed that it contains 3.56% of copper, of which over 73% is in the sulphide form, as well as 0.58 g/t of ...
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Copper recoveries from the Converter, TSL, Reverberatory and mixed slag at different flotation conditions. One of the results obtained after flotation and used to calculate …
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Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests.
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Recovering arsenic from copper smelting slag (CS) into concentrate by flotation, along with copper, can effectively manage arsenic contamination and recover substantial metal resources. The present work selected a combined collector for the simultaneous recovery of arsenic and copper based on the mineral morphology of the critical elements in CS.
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The variety of slag compositions of Table 1, is inherent to both the concentrate composition and the extraction method applied.Each slag composition requires an appropriate treatment method for further metal recovery or for utilization as construction material [27,28].Thermal reduction of copper smelter slags with solid carbon is commonly applied in …
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Recovery of copper in concentrates from slags cooled in the induction furnace and ground for 30 minutes ranged from 87.1 to 96.2 percent with the best recovery obtained on the highest grade slag sample. Copper …
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Copper smelting slag (CS), which is often overlooked, is a valuable solid-waste resource for reclaiming copper. Flotation is the most cost-effective method for its recovery. While most of the copper fraction can be easily recovered utilizing xanthate collection.
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Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two oneyear campaigns ...
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Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or ferrous silicate slag.
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In this study, iron selectivity behaviour of copper smelter slag (CSS) flotation tailings (38.08% Fe, 0.35% Cu, 4.48% Zn, 0.16% Co, 0.37% S) having fayalite and magnetite as major minerals was ...
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Flotation is one of the most important methods for recovering copper from copper slag, However, traditional grinding may be over grinding sometimes, resulting in smaller interface difference, which leads to a decrease in the selectivity of flotation. In this study, a sodium carbonate combined with mechanical activation enhanced flotation for recovering copper from …
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